* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Noto Sans SC', sans-serif;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
    color: #ffffff;
    background-size: 400% 400%;
    animation: gradientAnimation 15s ease infinite;
}

@keyframes gradientAnimation {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.container {
    text-align: center;
    padding: 2rem;
}

h1 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.current-datetime {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #ccc;
}

.countdown {
    display: flex;
    gap: 2rem;
    justify-content: center;
    flex-wrap: wrap;
}

.time-block {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 120px;
}

.time-block span:first-child {
    font-size: 4rem;
    font-weight: bold;
    background: rgba(255, 255, 255, 0.1);
    padding: 1rem;
    border-radius: 10px;
    min-width: 100px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.time-block span:first-child:hover {
    transform: translateY(-5px);
}

.time-block span:first-child.animate {
    animation: pulse 1s ease;
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
    100% {
        transform: scale(1);
    }
}

.label {
    margin-top: 0.5rem;
    font-size: 1.2rem;
    color: #cccccc;
}

.impact-text {
    font-size: 3rem;
    font-weight: bold;
    color: #ff4d4d; /* 醒目的红色 */
    margin-top: 3rem;
    text-shadow: 0 0 10px rgba(255, 77, 77, 0.5), 0 0 20px rgba(255, 77, 77, 0.3);
    animation: flicker 1.5s infinite alternate;
}

@keyframes flicker {
    0%, 100% {
        opacity: 1;
        text-shadow: 0 0 10px rgba(255, 77, 77, 0.5), 0 0 20px rgba(255, 77, 77, 0.3);
    }
    50% {
        opacity: 0.8;
        text-shadow: 0 0 5px rgba(255, 77, 77, 0.3), 0 0 15px rgba(255, 77, 77, 0.2);
    }
}

@media (max-width: 768px) {
    h1 {
        font-size: 1.8rem;
    }
    
    .countdown {
        gap: 1rem;
    }
    
    .time-block {
        min-width: 80px;
    }
    
    .time-block span:first-child {
        font-size: 2.5rem;
        min-width: 70px;
    }
    
    .label {
        font-size: 1rem;
    }
} 